


Nokia 1610
 (at the cellular phone)
 (at the cellular phone)
NOKIA SPECIAL at the cellular phone.
  
    | Pin | Name | Description | 
  
    | 1 | GND | Charger/System Ground | 
  
    | 2 | V_OUT | Accessory Output Supply. (3.4V...10V - 50mA) | 
  
    | 3 | XMIC | External Microphone Input and Accessory Identification | 
  
    | 4 | NC | Not Connected | 
  
    | 5 | NC | Not Connected | 
  
    | 6 | MBUS | Serial Control Bus | 
  
    | 7 | NC | Not Connected | 
  
    | 8 | SGND | Signal Ground | 
  
    | 9 | XEAR | External Speaker and Mute Control | 
  
    | 10 | Hook | Hook Signal | 
  
    | 11 | NC | Not Connected | 
  
    | 12 | V_IN | Charging Supply Voltage (Max 16V) | 
XMIC: External Microphone Input and Accessory Identification
  
    | U low | U high | Description | 
  
    | 1.15 V | 1.4 V | Compact Handsfree Unit Connected | 
  
    | 1.7 V | 2.05 | Headset Adapter Connected | 
MBUS: Serial Control Bus
  
    | U low | U high | Description | 
  
    | 0.0 V | 0.5 V | Logic Low Level | 
  
    | 2.4 V | 3.2 V | Logic High Level | 
XEAR: External Speaker and Mute Control
  
    | U low | U high | Description | 
  
    | 0.0 V | 0.5 V | Mute ON (HF Speaker Mute) | 
  
    | 1.0 V | 1.7 V | Mute OFF (HF Speaker Active) | 
Hook: Hook Signal
  
    | U low | U high | Description | 
  
    | 0.0 V | 0.5 V | Hook Off (Handset in Use) | 
  
    | 2.4 V | 3.2 V | Hook On (Handset in Use) | 
  Copyright © The Hardware Book Team 1996-2004.
  May be copied and redistributed, partially or in whole, as appropriate.
  Document last modified: 2002-01-10